package d.day9;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;



public class Utils {

	 private static void setRequestPro(HttpURLConnection urlConn) {







	        //User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36



	        urlConn.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36");



	        urlConn.setRequestProperty("Accept",



	                "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*");



	        urlConn.setRequestProperty("Accept-Language", "zh-cn");



	        urlConn.setRequestProperty("Accept-Encoding", "gzip");



	        urlConn.setRequestProperty("Content-type", "text/html");



	        urlConn.setRequestProperty("Connection", "close"); //keep-Alive，







	        urlConn.setUseCaches(false);



	        urlConn.setConnectTimeout(10 * 1000);



	        urlConn.setReadTimeout(10 * 1000);



	        urlConn.setDoOutput(true);



	        urlConn.setDoInput(true);



	    }











	    public static String GetWebContent(String urlString, final String charset, int timeout) throws IOException {



	        if (urlString == null || urlString.length() == 0) {



	            return null;



	        }



	        urlString = (urlString.startsWith("http://") || urlString.startsWith("https://")) ? urlString : ("http://" + urlString);



	        URL url = new URL(urlString);



	        HttpURLConnection conn = (HttpURLConnection) url.openConnection();



	        conn.setDoOutput(true);



	        conn.setRequestProperty("Pragma", "no-cache");



	        conn.setRequestProperty("Cache-Control", "no-cache");







	        int temp = Integer.parseInt(Math.round(Math.random() * 7) + "");



	        String ua = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36";



	        conn.setRequestProperty("User-Agent", ua);//UserAgent[temp]);



	        conn.setRequestProperty("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");//只接受text/html类型，当然也可以接受图片,pdf,*/*任意，就是tomcat/conf/web里面定义那些



	        conn.setConnectTimeout(timeout);



	        try {



	            System.out.println("conn.getResponseCode():" + conn.getResponseCode());



	            System.out.println("conn.getResponseMessage():" + conn.getResponseMessage());







	            if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {



	                return null;



	            }



	        } catch (Exception e) {



	            try {



	                e.printStackTrace();



	            } catch (Exception e2) {



	                e2.printStackTrace();



	            }



	            return null;



	        }







	        InputStream input = conn.getInputStream();



	       //  write2String(input,charset);



	      write2File(input,"G:\\temp\\download","163.html",charset);



	        if (conn != null) {



	            conn.disconnect();



	        }



	        return null ;



	    }







	  /*  private static String[] UserAgent = {



	            "Mozilla/5.0 (Linux; U; Android 2.2; en-us; Nexus One Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.2",



	            "Mozilla/5.0 (iPad; U; CPU OS 3_2_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B500 Safari/531.21.11",



	            "Mozilla/5.0 (SymbianOS/9.4; Series60/5.0 NokiaN97-1/20.0.019; Profile/MIDP-2.1 Configuration/CLDC-1.1) AppleWebKit/525 (KHTML, like Gecko) BrowserNG/7.1.18121",



	            "UCWEB7.0.2.37/28/998",



	            "NOKIA5700/UCWEB7.0.2.37/28/977",



	            "Openwave/UCWEB7.0.2.37/28/978",



	            "Openwave/UCWEB7.0.2.37/28/978",



	            "Mozilla/4.0 (compatible; MSIE 6.0; ) Opera/UCWEB7.0.2.37/28/989"



	    };*/







	    public static boolean isNotEmpty(Object o) {



	        if (null == o) {



	            return false;



	        }



	        if (o.toString().equals("")) {



	            return false;



	        }



	        return true;



	    }







	    public static void write2File(InputStream in, String path, String fileName,String charset) {



	        File fp = new File(path);



	        if(!fp.exists()){



	            fp.mkdirs();



	        }



	        try {







	            String filePath =fp +"\\"+ fileName;



	            PrintWriter pw = null;



	            FileOutputStream fos = new FileOutputStream(filePath);



	            OutputStreamWriter writer = new OutputStreamWriter(fos,charset);



	            pw = new PrintWriter(writer);



	            BufferedReader bReader = new BufferedReader(new InputStreamReader(in,charset));



	            StringBuffer sb = new StringBuffer();



	            String rLine = null;



	            while ((rLine = bReader.readLine()) != null) {



	                    pw.println(rLine);



	                    pw.flush();



	            }



	            in.close();



	            pw.close();



	        }catch (Exception e){



	            e.printStackTrace();



	        }







	    }







	    public static void write2String(InputStream input, String charset){



	        try {



	            BufferedReader reader = new BufferedReader(new InputStreamReader(input,



	                    charset));



	            String line = null;



	            StringBuffer sb = new StringBuffer();



	            while ((line = reader.readLine()) != null) {



	                sb.append(line).append("\r\n");



	            }



	            if (reader != null) {



	                reader.close();



	            }



	            System.out.println(sb.toString());/////////////////////打印网页内容



	        }catch (Exception e){



	            e.printStackTrace();



	        }



	    }







}

